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1-6 (No.MB455)

3.1.2 Removing the tuner 

(See Figs.4 and 5)

• Remove the metal cover.

(1) From the left side of the main body, disconnect the card

wire from the connector on the tuner. (See Fig.4.)

(2) From the back side of the main body, remove the two

screws 

B

 attaching the tuner to the rear panel. (See Fig.5.)

Fig.4

Fig.5

Tuner

Connector

Rear panel

B

Tuner

Summary of Contents for HX-D7

Page 1: ...ENT SYSTEM MB455 2005 8 HX D7 Lead free solder used in the board material Sn Ag Cu melting point 219 Centigrade TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 4 3 DISASSEMBLY 1 5 4 ADJUSTMENT 1 17 5 TROUBLESHOOTING 1 17 CA HXD7 SP HXD7 SP HXD7 Area suffix UJ U S Military ...

Page 2: ... tuning range 531 kHz 1 710 kHz at 9 kHz interval 530 kHz 1 710 kHz at 10 kHz interval Disc player section Playable disc DVD Video DVD Audio CD VCD SVCD CD R CD RW recorded in Audio CD Video CD Super Video CD MP3 JPEG format DVD R DVD RW recorded in video format Dynamic range 90 dB Horizontal resolution 500 lines Wow and flutter Immeasurable General Power requirement AC 110 V AC 127 V AC 220 V AC ...

Page 3: ...ack control shafts etc to be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug the AC line cord directly into the AC outlet Using a Leakage Current Tester measure the leakage current from each exposed metal parts of the cabinet particular ly any exposed metal part having a return path to the chassis to a known good...

Page 4: ...1 4 No MB455 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS ...

Page 5: ...rews A attaching the metal cover See Fig 1 2 From the both sides of the main body remove the four screws A attaching the metal cover See Figs 2 and 3 3 Remove the metal cover from the main body while lifting the rear section of the metal cover in the direction of the ar row See Figs 2 and 3 Fig 1 Fig 2 Fig 3 Metal cover A A A A A Metal cover A A Metal cover A A ...

Page 6: ...al cover 1 From the left side of the main body disconnect the card wire from the connector on the tuner See Fig 4 2 From the back side of the main body remove the two screws B attaching the tuner to the rear panel See Fig 5 Fig 4 Fig 5 Tuner Connector Rear panel B Tuner ...

Page 7: ...ain body disconnect the wire from the connector FAN101 on the amplifier board See Fig 6 2 From the back side of the main body remove the two screws C attaching the fan motor to the rear panel See Fig 7 3 Take out the fan motor from the main body Fig 6 Fig 7 Amplifier board FAN101 Fan motor Fan motor C Rear panel ...

Page 8: ... attaching the rear panel 2 Remove the sections a toward this side and remove the rear panel from the sections b Fig 8 3 1 5 Removing the video board See Fig 9 Remove the metal cover and rear panel From the back side of the main body disconnect the card wire from the connector CN101 on the video board Fig 9 Rear panel D D D a a b b D E CN101 Video board ...

Page 9: ...the connector FAN102 on the amplifier board and remove the wire from the slot c 3 Disconnect the wires from the connectors AW102 AW105 CW108 on the amplifier board 4 Disconnect the card wire from the connector AW104 on the amplifier board 5 Disconnect the card wire from the connector AW101 on the amplifier board and remove the card wire from the slot c 6 Remove the card wire of the tuner from the ...

Page 10: ... the heat sink See Figs 12 and 13 2 From the reverse side of the amplifier board remove the three screws J attaching the heat sink See Fig 14 3 Remove the soldered sections d e f and remove the power amplifier ICs from the forward side of the amplifier board See Fig 14 Fig 12 Fig 13 Fig 14 Amplifier board G Heat sink Power amplifier IC AIC01 Amplifier board G H Heat sink Power amplifier IC PIC02 P...

Page 11: ... remove the 5DVD changer mechanism as sembly from the main body in the direction of the arrow See Figs 17 and 18 6 Disconnect the card wire from the connector CW104 on the forward side of the main board See Fig 18 7 From the top side of the 5DVD changer mechanism as sembly remove the four screws N and remove the base 1 and base 2 See Fig 19 8 From the bottom side of the 5DVD changer mechanism as s...

Page 12: ...1 12 No MB455 Fig 18 Fig 19 5DVD changer mechanism assembly M CW104 Main board Base 2 Base 1 N N N N 5DVD changer mechanism assembly Tray panels j CN701 DVD servo control board j ...

Page 13: ...VD changer mechanism assembly 1 Remove the four screws Q attaching the power transformer on the bottom chassis 2 Take out the power transformer 3 1 12 Removing the main board See Figs 21 and 22 Remove the metal cover rear panel video board amplifier board and 5DVD changer mechanism assembly 1 From the top side of the main body remove the screw R at taching the earth wires on the bottom chassis See...

Page 14: ...ing the earth wires on the bottom chassis See Fig 21 2 From the both sides of the main body remove the two screws T attaching the front panel assembly See Figs 23 and 24 3 From the both and bottom sides of the main body release the joints k m and remove the front panel assembly from the main body in the direction of the arrow See Figs 23 to 25 Fig 23 Fig 24 Fig 25 Front panel assembly k T Front pa...

Page 15: ...r mechanism assembly and front panel assembly 1 From the inside of the front panel assembly remove the four screws U attaching the FL board 2 Take out the FL board from the front panel assembly and disconnect the card wire from the connector FW102 on the forward side of the FL board Fig 26 U U FW102 FL board Front panel assembly ...

Page 16: ... video board amplifier board 5DVD changer mechanism assembly and front panel assembly 1 From the front side of the front panel assembly pull out the volume knob in the direction of the arrow See Fig 28 2 From the inside of the front panel assembly disconnect the card wire from the connector FW301 on the volume board See Fig 29 3 Remove the seven screws U attaching the volume board See Fig 29 4 Tak...

Page 17: ... No MB455 1 17 SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING ...

Page 18: ... No MB455 AV MULTIMEDIA COMPANY AUDIO VIDEO SYSTEMS CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan Victor Company of Japan Limited VPT Printed in Japan ...

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